Author Topic: uSupply  (Read 27808 times)

0 Members and 1 Guest are viewing this topic.

Offline Rerouter

  • Super Contributor
  • ***
  • Posts: 4367
  • Country: au
  • Question Everything... Except This Statement
Re: uSupply
« Reply #25 on: March 14, 2013, 10:12:06 am »
Dave would i be right to guess that there is a new revision of the schematic floating around? or have you only mainly been tweaking minor components and layout since rev c?, my own variant still faces some minor issues and am curious as to how you have resolved them seeing as the issues should be very similar, (stability and minimum output, not to mention dac accuracy and low currents)
 

Offline konfu

  • Contributor
  • Posts: 30
  • Country: de
« Last Edit: March 14, 2013, 11:06:30 am by konfu »
 

Offline Maister

  • Contributor
  • Posts: 38
  • Country: de
  • Professional electronics design engineer
Re: uSupply
« Reply #27 on: March 15, 2013, 07:27:52 am »
Most interesting thing will be the videos showing what Dave changed in the design and what issues he came along.  ;)
Professional electronics design engineer living in Hannover, Germany.
 

Offline BiOzZ

  • Regular Contributor
  • *
  • Posts: 236
  • Country: us
Re: uSupply
« Reply #28 on: April 05, 2013, 07:09:38 am »
is this still going anywhere or did i miss the product release?
i would love to get an adjustable bench supply! 
My one regret in life is learning to speak English on the internet ...
 

Offline Ronald1962

  • Contributor
  • Posts: 21
  • Country: de
Re: uSupply
« Reply #29 on: April 06, 2013, 02:53:01 pm »
Hi,

I took almost the whole easter weekend to follow all 11 parts of the videos.

Only following them is really hard.

Dave said several times "it's easy - trust me", or "it's a piece of cake" while
I got crazy in my brain.

But after each video i got caught by this uspply.

I was never ever that much busy in understanding a power supply (on my low level)

So PLEASE Dave - sell the blank PCB (maybe togehter with the programmed chip :-) )

All guys here in this Forum are making me a little afraid. My knowledge level is so much
lower that yours...
But I will work on it!

One more time: Please sell the PCB.

Great videos!!!!

Thanks a lot!!!!!!!!

 

Offline casper.bang

  • Frequent Contributor
  • **
  • Posts: 311
  • Country: dk
  • Pro SE, amateur EE.
    • BangBits
Re: uSupply
« Reply #30 on: April 10, 2013, 07:36:24 pm »
I also spent the better part of Easter watching/listening to Dave's thorough videos which is what got me hooked. However, I think he should take the time he needs to complete the project. I would just encourage this cool design stuff to take precedence over the teardown stuff. However, I think I heard Dave say his teardown videos receive more views (which would make sense; a broader spectrum so easier to find by random on YouTube and easier to digest).

In any event, count me in as another guy prepared to throw money at Dave when the first uSupply batch becomes available.  :-+
 

Offline emcarro

  • Contributor
  • Posts: 5
Re: uSupply
« Reply #31 on: April 13, 2013, 01:42:31 am »
Come on Dave, make a quick follow up of the psu. Just a teaser one so we can see how it´s going!!!!
 

Offline Ronald1962

  • Contributor
  • Posts: 21
  • Country: de
Re: uSupply
« Reply #32 on: May 07, 2013, 08:25:02 am »
I'm afraid that this will take much longer than we would like to have.

Dave is obviously that heavily occupied by the work for the blog
that the uSupply has to "wait".

I assume that there was much more work on the way to rev C that we
saw in the videos. It took surely much more time than we could see.

The needed work to the final status will probably also not be "a piece of cake".
(  I like this phrase ;-)  ).

But lets be patient - even if it's hard...



 

Offline Jonas

  • Newbie
  • Posts: 2
Re: uSupply
« Reply #33 on: June 04, 2013, 11:22:49 am »
I just started reading/watching up on this. Nice one! But it's kind of sad (a real bummer, to be plain) that the project page (http://www.eevblog.com/projects/usupply/) is so 'unmaintained'. It doesn't even link to all the existing videos yet, but it does seem to have a rev. C schematic.

Not to mention the lack of additional resources required for the Open Source Hardware Logo (software, pcb, sources for the design)... I would really like to see some progress on this, maybe even get some help from the community by making more stuff available...

Just my €0.02.
 

Offline Phantomix

  • Contributor
  • Posts: 12
  • Country: de
Re: uSupply
« Reply #34 on: June 04, 2013, 02:33:47 pm »
In any event, count me in as another guy prepared to throw money at Dave when the first uSupply batch becomes available.  :-+

Me too,

depending on the result it'd be interesting for me
- to get that thing
or
- to get a plain pcb (which is cheaper for delivery)
or
- just donate some money and order a pcb + parts myself

and i want to tweak the Software a bit :D
 

Offline jarruda

  • Newbie
  • Posts: 1
  • Country: us
Re: uSupply
« Reply #35 on: June 20, 2013, 01:12:03 pm »
New viewer and hobbyist here and just wanted to throw my support behind this project/product.

After watching the design process through Rev C and the case design all those videos ago, I was really disappointed to look up the project page for the uSupply and see it apparently abandoned.  As others have mentioned, selling this kit through Sparkfun/Adafruit might be viable since they have far more visibility in the *very* amateur electronics segment - I've been messing around with Arduino stuff for the last couple of years and they're still a regular site that I check in with for new project ideas and products.

At any rate, awesome blog and I look forward to continuing watching!  I'm a software engineer by day, so if there's any way I can contribute, please don't hesitate to get in touch.

Justin
Justin
 

Offline Stonent

  • Super Contributor
  • ***
  • Posts: 3824
  • Country: us
Re: uSupply
« Reply #36 on: June 21, 2013, 08:41:02 am »
I start the build of my own version of this machine:

http://vpapanik.blogspot.gr/2012/11/low-budget-manual-pick-place.html

It seems to work very well in the video.

Maybe with help of this machine, the SMD kit would be a great idea.

I just want to get my hands on the guy that put that pop out menu on the left that interferes with reaching the scroll bar, and the feedback button that covers the down arrow!

My laptop doesn't have a scroll wheel... |O
The larger the government, the smaller the citizen.
 

Offline Ronald1962

  • Contributor
  • Posts: 21
  • Country: de
Re: uSupply
« Reply #37 on: November 18, 2014, 09:15:47 pm »
Hi Dave,

are there any news regarding this supply?

Please let us know...

Thanks!!!

Regards

Ronald
 

Offline jb79

  • Contributor
  • Posts: 23
  • Country: at
Re: uSupply
« Reply #38 on: November 22, 2014, 10:21:25 pm »
I'm also interested to see any updates on the project.

If it is possible to buy a blank pcb of the uSupply or even get the files for pcb manufacturing then please let us know.

best regards
Juergen
 

Offline Opticalworm

  • Contributor
  • Posts: 20
  • Country: gb
  • Mechatronics and Robotics Engineer
    • #define Electronics
Re: uSupply
« Reply #39 on: November 25, 2014, 11:34:42 am »
I'm just wondering about EMC.

Would the uSupply be classed as a test equipment and therefore be exempt from the standard?
Ronald Sousa
I am the founder of Hash Define Electronics ltd
I'm passionate about Engineering, Robotics & silly humour
 

Offline EvilGeniusSkis

  • Regular Contributor
  • *
  • Posts: 119
  • Country: ca
Re: uSupply
« Reply #40 on: December 04, 2014, 07:11:32 am »
I'm just wondering about EMC.

Would the uSupply be classed as a test equipment and therefore be exempt from the standard?
I would think so, it is certainly not a standard retail power supply.
 

Offline pefu

  • Newbie
  • Posts: 1
  • Country: de
Re: uSupply
« Reply #41 on: January 07, 2015, 09:03:01 am »
Happy new year 2015, Dave.

Plain PCB's aren't much of a hassle, as you can usually slip them international post as letter with no customs form.
I would not expect much call for it though.

Dave.

Dave: I believe there is still a lot of interest in this  :-+ µSupply project and I would like to see it finished and available to buy it for hobbyists in some form (plain PCB, partly assembled or even as a finished product: your choice).

Peter Funk (from Germany).
 

Offline jb79

  • Contributor
  • Posts: 23
  • Country: at
Re: uSupply
« Reply #42 on: February 13, 2015, 04:14:15 pm »
Hello Dave,

the uSupply is a very good project, all we need is a pcb and the latest firmware. Or are there still any issues that have to be solved?

regards
Jürgen Brenner (Austria)
 

Offline r.vlad

  • Contributor
  • Posts: 7
  • Country: ro
Re: uSupply
« Reply #43 on: February 18, 2015, 12:20:59 am »
Hello, is there a version of the code for this anywhere?
I started working on a power supply of my own controlled by an Arduino and would love to take a look at some of the code for the uSupply.
vladradoiu.wordpress.com
 

Offline jb79

  • Contributor
  • Posts: 23
  • Country: at
Re: uSupply
« Reply #44 on: April 17, 2015, 07:21:53 am »
Hello!

I'd like to bring this topic up again.
Is it possible to publish the (latest) firmware for the arduino and the files for the PCB?

Thanks!
 

Offline EEVblog

  • Administrator
  • *****
  • Posts: 29891
  • Country: au
    • EEVblog
Re: uSupply
« Reply #45 on: April 17, 2015, 07:37:13 am »
I'd like to bring this topic up again.
Is it possible to publish the (latest) firmware for the arduino and the files for the PCB?

Sorry but I don't like to release unfinished firmware or PCB files.
 

Offline Fungus

  • Super Contributor
  • ***
  • Posts: 10102
  • Country: 00
Re: uSupply
« Reply #46 on: April 17, 2015, 10:09:02 am »
I'd like to bring this topic up again.
Is it possible to publish the (latest) firmware for the arduino and the files for the PCB?

Sorry but I don't like to release unfinished firmware or PCB files.

I volunteer to write the firmware. I'm really good at that (honest!)

 

Offline RoboTechEd

  • Regular Contributor
  • *
  • Posts: 66
  • Country: us
Re: uSupply
« Reply #47 on: April 17, 2015, 05:15:37 pm »
Is there any plan to finish the project? I really enjoyed the series and would love to see it come to an end
 

Offline boffin

  • Supporter
  • ****
  • Posts: 882
  • Country: ca
Re: uSupply
« Reply #48 on: April 21, 2015, 04:53:49 am »
OK Dave; here's another micro manage, but I think I can save you another chip:

Idea #1 - save a chip:
1) make the rotary encoder a turn/push one, this saves a button (I know, but not IO at this point), and use the button to flip between modes: Voltage/Current, one other button for load on/off.  By reducing to a single control; you save space, and already your front panel is pretty busy.  Now you've gone from two rotary encoders  and 5 buttons, to one rotary encoder/button + one stand alone button, saving front panel space and 6 IO pins
2) drive the RGB off the same lines used for MISO/MOSI/SCK.  Who cares if your LCD flickers when you program the chip (3 more saved IO pins). (see radical idea below to remove Ethernet requirement from these pins)
Nine IO pins saved, No need to an IO expander

Radical Idea #2.
It's a cordless power supply, but has corded Ethernet?  in the words of a famous EE from down under:  "FAIL!"
Use an Electric Imp to provide wireless ethernet if you want it (i2C)



 

Offline jb79

  • Contributor
  • Posts: 23
  • Country: at
Re: uSupply
« Reply #49 on: October 03, 2016, 05:40:22 pm »
Hi!

One question about the EPOT used for setting the voltage divider of the boost converter:
In the Rev. C schematic MCP4017T-104E/LT is listed, that would be a 100k type.

To get the right values it should be 5k, as stated in the little yellow box above.
I think the correct type would then be a MCP4017T-502.
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf